As far as I can gather, and please note we are Consumer Software Moderators so don't take my word for anything, SaaS Endpoint customers will be transitioned to ePO Cloud, so I assume you will be notified in some manner of the change.

The PDF accompanying the EOL KB states:

Q:

Whom should I contact if I have additional questions?

A:

Please reach out to your Intel Security account manager if you have additional questions.